This entry presents the main concepts of symbolic interactionism as a theoretical and methodological framework aimed at analyzing how social experience is constructed by the means of language and social interaction. It also describes the evolution of these key concepts, in the course of the long history of this sociological current, with particular reference to their application in media studies. Recent developments in the field of Internet studies are briefly presented, in consideration of the revived interest in some classical constructs of sociological theory (community, definition of the situation, presentation of the Self), resulting from the diffusion of new forms of mediated interactions on the Web.